Webster’s Revised Unabridged Dictionary · 1913
Polyphyletic
Pol′y·phy·let′ic (·fī·lĕt′ĭk), a. [Poly- + Gr. φυλή clan.] (Biol.) Pertaining to, or characterized by, descent from more than one root form, or from many different root forms; polygenetic; — opposed to monophyletic.